(REAL_VALUE_TYPE): Define array at least 20 bytes wide
if LONG_DOUBLE_TYPE_SIZE is 128 bits.
(etartdouble): Declare and use for REAL_VALUE_TO_TARGET_LONG_DOUBLE
when long double is TFmode.
(REAL_VALUE_FIX, REAL_VALUE_UNSIGNED_FIX): Must always round
towards zero.
From-SVN: r5152
If REAL_ARITHMETIC is defined or if LONG_DOUBLE_TYPE_SIZE
is 96, then define REAL_VALUE_ macros to invoke functions in real.c.
(REAL_VALUE_RNDZINT, REAL_VALUE_UNSIGNED_RNDZINT):
New macros truncate toward zero to integer value but
return REAL_VALUE_TYPE.
(REAL_VALUE_TO_DECIMAL): New macro defaults to
fprintf if no REAL_ARITHMETIC, otherwise uses real.c for
binary to decimal conversion. Used in ASM_OUTPUT_ macros.
From-SVN: r3934
